Retinal Degeneration
A Macular Hole, as the term suggests, is a hole which forms at the central macula. It results in decreased vision centrally or a gap in the central vision.
A large percentage of macular hole cases seem to develop suddenly without obvious causes. Due to this reason, we are unable to prevent the development and formation of this condition. However, data suggests that individuals above 55 years of age are more susceptible to forming macular holes. Females are also more likely to develop macular holes as compared to males.
External factors such as injury or trauma to the area near the eye or head have been known to lead up to the formation of macular holes.
Certain bodily or eye conditions may also increase the risk of macular hole formation. Diabetic eye diseases have been known to contribute to the likelihood of forming macular holes.
If the patient has a high degree of myopia, over-stretching of the retina or too much traction from the vitreous gel centrally may be a possible cause. Changes in the eye may also be a likely cause. As we age, the vitreous gel that fills the inside of the eye can shrink. As this vitreous gel shrinks, it may effect a certain force on the retinal surface and may cause it to pull away as the gel shrinks. This force is known as “vitreous traction” and sometimes may cause a retinal detachment or a macular hole to form.
Formation of a macular hole in one eye only is common, but in individuals that have formed a macular hole, the likelihood of the other eye developing a macular hole is estimated to be 5-15%.
Macular holes can go away without treatment, but there is significant risk for it to worsen if left alone. Macular holes are classified in 3 stages:
Symptoms of a macular hole are manifested in changes in the patient’s central vision and visual acuity.
A patient will commonly observe:
This can cause straight lines to appear wavy or bent
The severity of the symptoms are entirely dependent on where the macular hole is situated on the macula or retina, its size, and how far the condition has progressed.
Experiencing any of the symptoms?
A macular hole is usually diagnosed through Optical Coherence Tomography (OCT), an imaging technique that allows your eye specialist to see the macula in detail. OCT helps determine the size, stage, and progression of the hole, which is essential for deciding whether intervention is necessary.
Early diagnosis is critical, as untreated macular holes can worsen over time and lead to permanent central vision loss. While macular hole surgery is often recommended for holes that threaten vision, small or minimally symptomatic holes may be carefully monitored with regular follow-ups to track any changes. Timely detection ensures that treatment, when needed, can preserve the best possible vision outcomes.
Typically, a surgical vitrectomy is the recommended treatment for a macular hole surgery treatment. During this surgery, the part of the vitreous gel that fills the interior of the eyeball is partially removed at the point where the macular hole has occurred. This space is then filled with a gas bubble tamponade to allow the hole to close on its own. This method is effective in solving the “pull away” effect when the vitreous gel shrinks, while allowing the macular hole to close.
In certain cases, where the macular hole is very small and when it does not present a significant deterioration of vision, the eye specialist may decide that it is better to postpone or not do macular hole surgery at all, and to leave it to close on its own under careful and strict monitoring. Should this be the case for you, please be reminded that it is of utmost importance to stick to the regular schedule for follow-up appointments. This will allow the eye specialist to ensure that healing at the site is progressing as expected, and if the condition worsens, it is detected and treated at the earliest possible timing.
This would prevent damage to your macula and retina, preserving the quality of vision that would not normally be possible if left untreated.
Treatment is usually more successful when performed earlier. If surgery is delayed, the chance of full visual recovery may be reduced, particularly if the macular hole has been present for some time.
Vision often improves after surgery, but it may not return completely to its previous level. The degree of recovery varies depending on how early the macular hole is treated and the condition of the retina at the time of surgery.
Vision typically improves gradually over several weeks to months after surgery. In some cases, improvement may continue for a few months as the retina continues to heal.
Recurrence is uncommon, but regular follow-up appointments are important to ensure the macular hole remains closed and the retina stays stable.
